Design optimization of a MASH TL-3 concrete barrier using RBF-based metamodels and nonlinear finite element simulations

H Yin, H Fang, Q Wang, G Wen - Engineering Structures, 2016 - Elsevier
Concrete barriers are one of the most widely used safety features for preventing errant
vehicles from entering opposing travel lanes on highways. As a safety device, a concrete …

RBF surrogate model and EN1317 collision safety-based optimization of two guardrails

S Ozcanan, AO Atahan - Structural and Multidisciplinary Optimization, 2019 - Springer
The purpose of using roadside safety equipment is to protect vehicle occupants during an
accident by reducing the severity of impact. Using poorly designed safety equipment can …

Artificial neural network metamodeling-based design optimization of a continuous motorcyclists protection barrier system

İ Yılmaz, İ Yelek, S Özcanan, AO Atahan… - Structural and …, 2021 - Springer
Longitudinal barriers are considered as passive safety systems designed to shield hazards
located at roadsides against motor vehicle impacts. Since these barriers are manmade …

Crash analysis and evaluation of vehicular impacts on W-beam guardrails placed on sloped medians using finite element simulations

M Gutowski, E Palta, H Fang - Advances in Engineering Software, 2017 - Elsevier
With an average of six billion miles traveled per day on US highways, according to the
Federal Highway Administration (FHWA), transportation safety is of the utmost importance …

Radial basis function surrogate model-based optimization of guardrail post embedment depth in different soil conditions

S Ozcanan, AO Atahan - Proceedings of the Institution of …, 2020 - journals.sagepub.com
For guardrail designers, it is essential to achieve a crashworthy and optimal system design.
One of the most critical parameters for an optimal road restraint system is the post …

Numerical modeling and simulation of cable barriers under vehicular impacts on a sloped median

Q Wang, E Palta, H Fang - International Journal of Protective …, 2024 - journals.sagepub.com
Cable barriers are flexible barrier systems that are commonly used as median barriers in the
United States for their general effectiveness and low installation and maintenance costs. The …

Head-on and angular impact-based investigation of mechanical behavior of guardrail post types with finite element analysis

S Ozcanan - Proceedings of the Institution of Mechanical …, 2024 - journals.sagepub.com
The geometric sections of guardrail systems that provide roadside safety are important in
terms of their safety and structural performance. Guardrail systems generally consist of posts …

[PDF][PDF] Soil based design of highway guardrail post depths using pendulum impact tests

M Örnek, AO Atahan, Y Türedi, MM Erdem… - Acta Geotechnica …, 2019 - academia.edu
Guardrails are passive road restraint systems (RRS) used at roadsides and medians to
improve road safety. In the case of inadequate post embedment depth of soil driven posts …

Determination of optimum post embedment depth for C120 steel posts using field and full scale crash test

AO Atahan, M Büyük, M Örnek, M Erdem… - International journal of …, 2019 - Taylor & Francis
C120 steel sections are the most widely used post shapes in European guardrail designs.
The design length of these posts is determined based on guardrail containment level and …

Performance evaluation of NCDOT w-beam guardrails under MASH TL-2 conditions.

H Fang, M Gutowski, N Li, M DiSogra - 2013 - rosap.ntl.bts.gov
This report summarizes the research efforts of using finite element modeling and simulations
to evaluate the performance of W-beam guardrails for different heights under MASH Test …