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Technical Paper

Development and Calibration of the Large Omnidirectional Child ATD Head Finite Element Model

2021-04-06
2021-01-0922
To improve the biofidelity of the currently available Hybrid III 10-year-old (HIII-10C) Anthropomorphic Test Device (ATD), the National Highway Traffic Safety Administration (NHTSA) has developed the Large Omnidirectional Child (LODC) ATD. The LODC head is a redesigned HIII-10C head with mass properties and modified skin material required to match pediatric biomechanical impact response targets from the literature. A dynamic, nonlinear finite element (FE) model of the LODC head has been developed using the mesh generating tool Hypermesh based on the three-dimensional CAD model. The material data, contact definitions, and initial conditions are defined in LS-PrePost and converted to LS-Dyna solver input format. The aluminum head skull is stiff relative to head flesh material and was thus modeled as a rigid material. For the actual LODC, the head flesh is form fit onto the skull and held in place through contact friction.
Technical Paper

Human Foot-Ankle Injuries and Associated Risk Curves from Under Body Blast Loading Conditions

2017-11-13
2017-22-0006
Under body blast (UBB) loading to military transport vehicles is known to cause foot-ankle fractures to occupants due to energy transfer from the vehicle floor to the feet of the soldier. The soldier posture, the proximity of the event with respect to the soldier, the personal protective equipment (PPE) and age/sex of the soldier are some variables that can influence injury severity and injury patterns. Recently conducted experiments to simulate the loading environment to the human foot/ankle in UBB events (~5ms rise time) with variables such as posture, age and PPE were used for the current study. The objective of this study was to determine statistically if these variables affected the primary injury predictors, and develop injury risk curves. Fifty below-knee post mortem human surrogate (PMHS) legs were used for statistical analysis. Injuries to specimens involved isolated and multiple fractures of varying severity.
Standard

Breath-Based Alcohol Detection System

2021-01-27
HISTORICAL
J3214_202101
This standard establishes the performance specifications for the zero-tolerance breath alcohol detection system to reduce the risks of driving under the influence of alcohol. It defines the accuracy and precision requirements of the BrAC measurement, as well as the acceptability criteria and key parameters to test these requirements. Additionally, this standard sets the performance requirements of the system for ethanol sensitivity, the response time, and the electrical, mechanical, and environmental conditions the system may encounter throughout the lifespan of the vehicle.
Training / Education

GD&T Fundamentals Based on ASME Y14.5-2018

Anytime
This interactive eLearning GD&T training course now utilizes HTML5 for better browser and device compatibility. It contains 23 robust, self-paced learning modules that explain the terms, symbols, modifiers, rules, and basic concepts of geometric tolerancing as prescribed in the ASME Y14.5-2018 Standard. Progress is easily measured with instant feedback throughout each lesson that reinforces and aids in concept retention, allowing the learner to determine where further review may be needed. Full color detailed animations that help participants clearly visualize concepts, along with audio narration and 3D solid part examples.
Training / Education

ISO 14001:2015 Standard Training

Anytime
ISO 14001:2015 is an environmental management standard (EMS) developed by the International Organization for Standardization (ISO). The ISO 14001 standard is generic and can be used for any organization, whether it provides physical products or services. The requirements must be carefully interpreted to make sense within a particular organization. Developing automotive products and the environmental impact of this activity is not like producing food products or offering consulting services; yet the ISO 14001 standard, because it is business and management oriented can be applied to any activity.
Training / Education

GD&T Fundamentals Based on ASME Y14.5-2009

Anytime
This interactive eLearning GD&T training course now utilizes HTML5 for better browser and device compatibility. It contains 29 robust, self-paced learning modules that explain the terms, symbols, modifiers, rules, and basic concepts of geometric tolerancing as prescribed in the ASME Y14.5-2009 Standard. Progress is easily measured with instant feedback throughout each lesson that reinforces and aids in concept retention, allowing the learner to determine where further review may be needed. Full color detailed animations that help particpants clearly visualize concepts, along with audio narration and 3D solid part examples.
Training / Education

ISO 9001:2015 Standard Training

Anytime
This self paced course reviews the important facets of ISO 9001:2015, the most widely accepted quality management standard.  The standard can be applied to any organization that, regardless of its type or size, needs to demonstrate its ability to consistently provide products and services that enhance customer satisfaction and provide assurance of conformity to customer and applicable statutory and regulatory requirements.
Training / Education

Aviation Parts to Medical Devices Bridging the Gap

This course is verified by Probitas Authentication as meeting the AS9104/3A requirements for continuing Professional Development. This one-day program is designed to provide introductory information for those organizations who are considering transitioning from the Aeronautic, Space and Defense industry to the Food & Drug Administration (FDA), Medical Device Manufacturing market. Reviewing essential information necessary to understand and successfully begin the journey to FDA Medical Device approval, this course will examine many of the controls between the AS9100 Standard and FDA Regulations and identify the similarities.
Training / Education

Critical Concepts of Tolerance Stacks ASME Y14.5 1994, 2009, 2018 - Advanced Level

Using tolerance stacks ensures that parts fit together properly, reducing scrap and rework, thereby increasing value. This 3-day advanced-level course includes everything covered in the 2-day foundational-level course. It explains how to use tolerance stacks to analyze product designs and how to use geometric tolerances in stacks.
Training / Education

ISO 14001:2015 Lead Auditor Training

Anytime
ISO 14001:2015 is an environmental management standard (EMS) developed by the International Organization for Standardization (ISO). It’s a generic standard that can be used for any organization that provides physical products or services. ISO 14001 is the most widely used EMS because it’s both business and management oriented. However, the requirements must be carefully interpreted to make sense within a particular organization. For example, the environmental impact of developing automotive products is not the same as producing food products or offering consulting services, yet this standard can be applied to any of these activities.
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