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Learn more about Aperture and forensics through our recent news and research.

articles | 12.06.2023

The investigation of automotive accident injuries

An investigation of Elderly Occupant Injury Risks based on Anthropometric Changes compared to Young Counterparts

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articles | 05.09.2023

A look into our construction dispute services

Construction Contract Disputes, Analysis of Cost Overruns and Disruption Delays, and Productivity Analysis.

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articles | 04.11.2023

Aggregation of lumbar loads in rear impact crash tests

An analysis of peak lumbar load data collected from the existing peer-reviewed literature on rear impact crash tests was performed. Values for peak lumbar tension/compression, peak lumbar sagittal forces, and peak lumbar flexion/extension moments were aggregated from each study.

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articles | 04.11.2023

Quantifying the deceleration of various electric vehicles using regenerative braking

Regenerative braking is present in almost all electric vehicle models and as the demand for electric vehicles grows, the types of electric vehicles grow as well. Regenerative braking allows for an electric vehicle to convert a vehicle’s kinetic energy into electrical potential energy by utilizing the electric motors to slow the vehicle…

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articles | 04.11.2023

Estimation of seated driver eye height based on standing height, weight, seatback angle, and seat bottom angle

This paper presents an analysis on the position of driver eye height as a function of their standing height, weight, biological sex, seat back angle and seat bottom angle. Typically, eye heights are estimated based on standing height, or measured from a rigid seated position with a vertical seat back.

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press | 03.24.2023

Aperture's virtual reality integration

At Aperture, we have integrated virtual reality into our project workflow, resulting in a completely immersive experience of visual information. Typical animations start with digital models meant to depict the sequence and are then rendered to give them color and texture. 

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press | 02.01.2023

Aperture announces new office in Houston

Aperture has decided to open an office in Houston to better serve your immediate response and investigation needs.

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articles | 01.24.2023

Allocation methods for indirect costs on large projects

Over the past 15 years, there has been a substantial increase in the number of extremely large (single contracts in excess of $500,000,000) heavy civil, process, and power projects being awarded and constructed using fixed price contracts.

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press | 12.19.2022

Aperture announces the partnership of the sage group

Arlington, Texas. Aperture, LLC (“Aperture”), a Trinity Hunt Partners (“THP”) portfolio company, announced its partnership with Sage Group, Inc. (“Sage”) today. Bill Schwartzkopf joined what is now Sage in 1989 and founded Sage’s practice in consulting and expert services in construction disputes. Sage has since become a premier provider of consulting and expert witness services to the international construction industry, including claim preparation and analysis, damages analysis, evaluation of cost overruns, disruptions and delays, schedule analysis, construction defects, cost of repair/cost estimates. Sage is based in Denver, Colorado.

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articles | 11.15.2022

A look into digital forensics

Digital Forensics preserves data which often contain evidence that could be crucial to your case. Extraction and analysis of this data requires specialized techniques and adherence to stringent protocols. Our in-house digital forensics professional is skilled at both data extraction and interpretation, helping you understand the evidence and how it impacts your case.

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press | 10.05.2022

CAC Forensics rebrands as Aperture

Arlington, Texas. Aperture, LLC (“Aperture”), a Trinity Hunt Partners (“THP”) portfolio company, announced its partnership with CAC Forensics, LLC (“CAC”) today. CAC was founded by Will Miller and his wife Shannon, in 2003, and is a premier provider of accident reconstruction and digital forensic engineering services based in Southlake, Texas.

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articles | 09.15.2022

A look into tractor trailer collisions

For cases involving commercial vehicles, Aperture can assist clients in performing the proper steps to investigate and reconstruct a commercial vehicle accident while at the same time creating a peace of mind that all pertinent data related to the collision is recovered.

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press | 08.01.2022

BRT rebrands as Aperture

National forensics engineering firm, Aperture, LLC (“Aperture”), a Trinity Hunt Partners (“THP”) portfolio company, acquired Biomechanical Research & Testing, LLC (BRT) in 2021. Starting immediately, BRT will rebrand as Aperture and continue to provide full-service expert analysis, but with a broader reach and a deeper bench.

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articles | 07.21.2022

A look into the construction industry.

Learn more about our construction consulting services.

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articles | 06.21.2022

The power of safety: a look into premises liability

Aperture can assist in developing a program to prevent children and users from injury due to playground hazards. For cases or situations involving playgrounds, Aperture can evaluate the playground for safety issues. The steps we take: Evaluate the playground for safety, assist in developing a program to prevent children and users from injury due to playground hazards, evaluate equipment specifications, provide maintenance, perform audits and inspections, identify hazards, check surface requirements and provide risk management methods.

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articles | 04.06.2022

Validation of vehicle speed analysis utilizing the input-ace camera match overlay tool

Traffic cameras, dash-cameras, surveillance cameras, and other video sources increasingly capture critical evidence used in the accident reconstruction process.

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articles | 03.09.2022

Validation of utilizing a self-propelled crash sled to simulate occupant accelerations in minor rear-end impacts

A novel, electrically self-propelled, mobile, free-standing crash sled was constructed with a relatively minimal budget (i.e., ≤ $10,000). The crash sled was designed to simulate occupant driver or passenger seat movement in minor impacts at varying angles with minimal, if any, component replacement necessary between tests. Validation of the crash sled in a rear-end only configuration for determination of occupant accelerations was performed.

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press | 03.01.2022

VA Forensics rebrands as Aperture

National forensics engineering firm, Aperture, LLC (“Aperture”), a Trinity Hunt Partners (“THP”) portfolio company, acquired VA Forensics (“VAF”) in 2020. Starting immediately, VAF will rebrand as Aperture and continue to provide full-service expert analysis, but with a broader reach and a deeper bench.

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press | 03.01.2022

Wexco rebrands as Aperture

National forensics engineering firm, Aperture, LLC (“Aperture”), a Trinity Hunt Partners (“THP”) portfolio company, acquired WEXCO in 2020. Starting immediately, WEXCO will rebrand as Aperture and continue to provide full-service expert analysis, but with a broader reach and a deeper bench.

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press | 03.01.2022

American Bio Engineers rebrands as Aperture

National forensics engineering firm, Aperture, LLC (“Aperture”), a Trinity Hunt Partners (“THP”) portfolio company, acquired American Bio Engineers, LLC (“ABE”) in 2021. Starting immediately, ABE will rebrand as Aperture and continue to provide full-service expert analysis, but with a broader reach and a deeper bench.

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press | 01.03.2022

Scientific Analysis, Inc. Rebrands as Aperture

National forensics engineering firm, Aperture, LLC (“Aperture”), a Trinity Hunt Partners (“THP”) portfolio company, acquired Scientific Analysis, Inc. (“SAI”) in 2020. Starting immediately, SAI will rebrand as Aperture and continue to provide full-service expert analysis, but with a broader reach and a deeper bench.

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press | 12.31.2021

Aperture announces the purchase of Biomechanical Research & Testing, LLC

Arlington, Texas. Aperture, LLC (“Aperture”), a Trinity Hunt Partners (“THP”) portfolio company, announced its partnership with Biomechanical Research & Testing, LLC (“BRT”) today. BRT, co-founded by Dr. Judson Welcher, Ph.D., in 1994, is a premier provider of biomechanical and accident reconstruction forensic engineering services based in Long Beach, California. Dr. Welcher is joined by his four partners, Mr. Daniel Voss., Mr. Bryan Randles, Mr. Isaac Ikram, and Mr. Christopher Furbish in completing this transaction.

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articles | 11.08.2021

The power of data collection

In this day and age, data collection follows us at every turn. Between computers, smartphones, and smart watches, nearly all of a person’s daily information can be recorded and tracked. While some forms of data collection are consensual and commonly known, other types of data collection occur behind the scenes and in places one might not expect.

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articles | 10.20.2021

The power of smartphones in the field

In recent years, smartphones have become valuable tools for information, productivity, and communication. The cameras built into these devices have always been a major draw. These days you can enjoy incredible detail and even professional quality images with the additions of photo editing, enhanced zoom range, and lens functions. Additionally, some smartphones have a new sensor that adds depth scanning for better photos. LIDAR (“light detection and ranging”) technology works by bouncing lasers off objects to measure their distance, based on how long it takes for the light to get back to the sensor. The depth sensing is also used to improve night portrait mode effects.

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press | 07.12.2021

Aperture announces the acquisition of American Bio Engineers

Arlington, Texas. Aperture, LLC (“Aperture”), a Trinity Hunt Partners (“THP”) portfolio company, announced its partnership with American Bio Engineers, LLC (“ABE”) today. ABE, founded by Brian Jones in 2009, is a premier provider of biomechanical and accident reconstruction forensic engineering services based in Las Vegas, Nevada, with satellite offices in Scottsdale, Arizona and San Diego, California.

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press | 12.22.2020

Aperture announces the acquisition of VA Forensics, LLC

Dallas, Texas. Aperture LLC, a Trinity Hunt Partners (“THP”) portfolio company, announced its partnership with VA Forensics, LLC (“VAF”) today. VAF, founded by Gene Vanderpol in 1998, is a premier provider of biomechanical and accident reconstruction forensic engineering services based in Carlsbad, California.

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press | 08.10.2020

Aperture announces the acquisition of Scientific Analysis, Inc.

Aperture, LLC, a Trinity Hunt Partners (THP) portfolio company, announced its partnership with Scientific Analysis, Inc. (SAI) today. SAI, founded by Steve Irwin in 1990, is a premier provider of accident reconstruction forensic engineering services based in Dallas, Texas.

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press | 08.07.2019

Trinity Hunt Partners announces acquisition of Wexco International

Trinity Hunt Partners, a growth-oriented, middle market private equity firm, today announced its partnership with WEXCO International, a full-service provider of litigation focused forensic engineering services based in Marina del Rey, California.

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2019

Occupant Kinematics and Loading in Low Speed Lateral Impacts

Furbish, C., Welcher, J., Brink, J., Jones, B.
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2019

Inter-Vehicular Sliding Friction and Crush Energy Losses in Impulse Momentum Planar Collision

Carpenter, N., Welcher, J.
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2018

Comparing the Accuracy of Image Based Scanning Techniques to Laser Scanners

Grimes C., Roescher T., Suway J., Welcher J.
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2016

A Quantitative Method for Accurately Depicting Still Photographs or Video of a Night-Time Scene Utilizing Equivalent Contrast

Suway, J., Welcher, J.
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2015

Analysis of Crash Data from a 2012 Kia Soul Event Data Recorder

Vandiver, W., Anderson, R., Ikram, I., Randles, B., Furbish, C.
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2015

Retroreflective DOT-C2 Tape Performance in Relation to Observation and Entrance Angle - A Real World Study

Suway, J., Welcher, J.
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2015

Quantifying Retroreflective DOT-C2 Tape Performance using a Retroreflectometer

Suway, J., Welcher, J.
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2014

Acceleration Testing and Modeling of Vehicle Kinematics Under Idle Conditions

Randles, B., Voss, D., Ikram, I., Furbish, C., Welcher, J., Szabo, T.
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2014

Forces in Vehicle Side-view Mirror Collisions

Anderson, R., Furbish, C.
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2013

Lumbar facet joint and intervertebral disc loading during simulated frontal plane pelvic obliquity. The Spine Journal

Popovich, J.M., Jr., Welcher, J.B., Hedman, T.P., Tawackoli, W., Anand, N., Chen, T.C., Kulig, K.
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2013

Validation and Use of EDR Data from a Non-CDR Supported Vehicle in a Criminal Prosecution

Vandiver, W., Ikram, I., Randles, B.
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2013

Accuracy of Pre-Crash Speed Recorded in 2009 Mitsubishi Lancer Event Data Recorders

Vandiver, W., Ikram, I., Randles, B.
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2011

Steering Column Loads and Upper Extremity Motions During Low Speed Rear-End Collisions

Furbish, C., Ivory, M., Hoffman, M., Anderson, R., et al.
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2010

A New Sensor Array for Measuring Intra-Articular Pressure: Evaluation and Validation

Welcher, J., Popovich J., Hedman, T., Tawackoli W.
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2010

Increased Risk of Submarining and Lower Extremity Injuries Associated with Obesity in Frontal Impacts

Furbish CJ., Ward P., Der Avanessian H.
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2010

The Accuracy of Photogrammetry vs. Hands-on Measurement Techniques used in Accident Reconstruction

Randles, B., Jones, B., Welcher, J., Szabo, T., Elliott, D., MacAdams, C.
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2010

Brake Pedal Response and Occupant Kinematics During Low Speed Rear-End Collisions

Ivory, M., Furbish, C., Hoffman, M., Miller, E., et al.
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2009

The Effect of Follower Load on Lumbar Spine Facet Joint Forces and Intervertebral Disc Pressures

Popovich J., Welcher J., Cholewicki, J., Tawackoli W., Kulig K.
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2009

Determining Vehicle Speed in a Fatal Pedestrian Impact: A Case of Tampered Evidence

Furbish CJ., Ward P., Der Avanessian H.
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2008

Development and Validation of a Versatile Intra-Articular Pressure Sensing Array

Welcher, J., Popovich J., Hedman, T., Tawackoli W.
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2008

Single Point Crush Variation

Singh J., Perry, J., Welcher, J.
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2007

The effect of loading rate on porcine lumbar spinal segments: An in-vitro biomechanical study

Popovich, J.M., Jr., Welcher, J.W., Kulig, K., Pelled, G., Gazit, D., Tawackoli, W.
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2007

Airbag Injury Risk to Older Children Occupying the Front Passenger Seat

Furbish CJ., Ward C., Hoffman MR.
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2005

Pedestrian Impact Biomechanics

Welcher, J.
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2005

Kinematics of Head Movement and Onset of Sternocleidomastoid Muscle Activity in Simulated Low-Velocity Rear-end Impacts

Hernández, I., Fyfe, K., Heo, G., Ikram, I., Major, P.
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2004

Development of an Accelerometer Based Motion Analysis System for Measurement of Head and Jaw Kinematics During Rear-Impact

Ikram, I.
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2003

Influence of Seat Foam and Geometrical Properties on BioRID P3 Kinematic Response to Rear Impacts

Szabo, T., Voss, D., Welcher, J.
2003

N-point Linear Interpolation of Motor Vehicle Crush Profiles Applied to Various Force-Shortening Models

Singh, J., Welcher, J., Perry, J.
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2003

Occupant Kinematics (Biomechanics)

Welcher, J.
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2003

Effects of Mass and Stiffness Ratio Variation on Vehicle Speed Change and Closing Speed Calculations

Singh, J., Welcher, J., Perry, J.
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2003

Vehicle and Occupant Kinematics in Low-Speed Override/Underride Collisions

Fugger, T., Randles, B., Welcher, J., Szabo, T.
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2002

Influence of Seat Foam and Geometrical Properties on BioRID P3 Kinematic Response to Rear Impacts

Szabo, T., Voss, D., Welcher, J.
2002

Vibrations experienced by wheelchair users while traversing decorative crosswalks

Wobrock, J., Fugger, T., Randles, B., Vrongistinos, K.
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2002

Relationships Between Impact Pulse Duration and Occupant Kinematics in Low Speed Rear Impacts

Szabo, T., Voss, D., Welcher, J.
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2001

Relationship Between Seat Properties and Human Subject Kinematics in Rear-Impact Tests

Welcher, J., Szabo, T.
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2001

Statistical Dependence of Human Occupant Accelerations on Vehicle Impact Measures in Rear-End Impacts

Welcher, J., Szabo, T., Voss, D.
2001

An analysis of pedestrian dummy throw characteristics for forward projection pedestrian collisions (published abstract)

Fugger, T., Randles, B., Wobrock, J., Eubanks, J.,
2001

Human Occupant Motion in Rear-End Impacts: Effects of Incremental Increases in Velocity Change

Welcher, J., Szabo, T., Voss, D.,
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2001

Driver Characteristics at Signal-Controlled Intersections

Fugger, T., Wobrock, J., Randles, B., Stein, A., Whiting, W.
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2001

Pedestrian Behavior at Signal-Controlled Crosswalks

Fugger, T., Randles, B., Wobrock, J., Stein, A., Whiting, W.
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2001

Investigation and Analysis of Real-Life Pedestrian Collisions

Randles, B., Fugger, T., Eubanks, J., Pasanen, E.
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2001

Stiffness and Crush Energy Analysis for Vehicle Collision and its Relationship to Barrier Equivalent Velocity (BEV)

Carpenter, N., Welcher, J.,
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2000

Influence of Seat Properties on Occupant Kinematics and Injury Potential in Low-Speed Rear Impacts

Szabo, T.
2000

Comparison of pedestrian accident reconstruction models to experimental test data for wrap trajectories

Fugger, T., Randles, B., Eubanks, J.,
2000

Analysis of pedestrian gait and perception/reaction at signal-controlled crosswalk intersections.

Fugger, T., Randles, B., Stein, A., Whiting, W., Gallagher, B.,
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1999

Occupant Modeling for Accident Reconstruction

Welcher, J.
1999

Relationship Between Seat Properties and Human Subject Kinematics in Rear Impact Tests

Welcher, J., Szabo, T.,
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1998

Biomechanics of Low-Speed Impacts

Szabo, T., Welcher, J.
1998

Low Speed Car Impacts with Different Bumper Systems: Correlation of Analytical Model with Tests

Ojalvo, I., Weber, B., Evensen, D., Szabo, T., Welcher, J.
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1998

Biomechanics of Low Speed Impacts

Szabo, T., Welcher, J.
1998

Effect of Braking on Human Occupant and Vehicle Kinematics in Low Speed Rear-End Collisions

Anderson, R., Welcher, J., Szabo, T., Eubanks, J., Haight, W.
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1998

System-Based Energy and Momentum Analysis of Collisions

Schmidt, B., Haight, W., Szabo, T., Welcher, J.
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1997

Human Subject Testing and Response to Low Level Accelerations

Szabo, T.
1997

Human Subject Testing and Response to Low Level Accelerations

Szabo, T.
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1996

Introduction to Low-Speed Impacts

Welcher, J., Szabo T.
1996

Human Subject Kinematics and Electromyographic Activity During Low Speed Rear Impacts

Szabo, T., Welcher, J.
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1996

Human Subject Responses to Various Acceleration Fields

Szabo, T., Welcher, J.
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1994

Recent Research on Rear Impact Collisions

Ward, C., Szabo, T., Welcher, J.
1994

Human Occupant Kinematic Response to Low Speed Rear-End Impacts

Szabo, T., Welcher, J., Anderson, R., Rice, M., et al.
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1994

Comparative Analysis of Riot-Control Projectile Testing

Rice, M., Welcher, J., Ward, J.
1993

The Rodney King Case: An Analysis of the Forces Produced from Baton Strikes

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1993

Biomechanical Analysis of Forces Produced from Baton Strikes

Welcher, J., Ward, J., Ward, C.
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1992

Dynamics of Low Speed Crash Tests with Energy Absorbing Bumpers

Szabo, T., Welcher, J.
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1992

Contribution of Energy-Absorbing (EA) Bumpers to Occupant Protection

Welcher, J.
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1989

Design of a Motorcyclist Anthropomorphic Test Device

St. Laurent, A., Szabo, T., Schewchenko, N., Newman, J.
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A Look Into A Motorcycle Case Study
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