International Journal of Forensic Engineering (6 papers in press)
The impact and awareness of implementing Safety Management System OHSAS 18001:2007 at Kulliyyah of Engineering
by Wan Ahmad Yusmawiza Wan Yusoff
Abstract: ABSTRACT Purpose-The purpose of this paper is to analyze the impact of awareness towards the implementation of occupational safety and health management system, OHSAS 18001:2007 at Kulliyyah of Engineering, International Islamic University Malaysia (IIUM). Design/methodology/approach- The paper analyzes data from two samples which are 61 staff and 893 students from Kulliyyah of Engineering based on gender, department, years of experience with IIUM, job category and level of study. The problem questions are tested through the analysis. Findings- Data analysis shows that the department, years of experience and job category have direct effect of awareness towards the implementation of the system. Finally, the gender does not show the effect of awareness towards the implementation of the system. Research limitations/implications- Future research should be continuing with the large sample size with different level of difficulty of questions. Moreover, analyses carried out provide some interesting directions and recommendations for future research. Practical implications- The practical implication is continues training needed and implement the system to all departments. Based on the outcome of the analysis, management can review the weaknesses thus make some strategies to overcome them. Indirectly, respondents become aware on the existence of this system from the survey of this paper. Originality/value- the occupational safety and health is not new in engineering field. Basically, this research analyzes the level of awareness among community of KOE. Thus, contribute to the advancement based on the survey questionnaire.
Keywords: OHSAS 18001:2007 ;Safety Management System ;Chemicals Hazardous ;Safety and Health;Operational Control.
Options to use rectification program to evaluate degree of conformance of vehicle deformations in multiple damage
by Ján Mandelík
Abstract: The article deals with the demonstrations of the rectification program usage options in order to evaluate a degree of conformance of vehicle deformations in its multiple damage so as to settle insurance events. It briefly explains the purpose of the rectification program used in the expert analysis of traffic accidents in order to process the photo documentation of a traffic accident location. Furthermore, it clarifies the reason to assess the degree of conformance of vehicle deformations in case of repeated insurance events associated with one vehicle and a common method to evaluate them for the needs of forensic evidence. Subsequently, it demonstrates a method of using the PC Rect rectification program in order to objectively evaluate the degree of conformance of vehicle deformations that developed due to repeated insurance events. In conclusion, an evaluation of the assets of the demonstrated process for the needs of its further usage in technical assessment of the issue in question is carried out.
Keywords: Vehicle; comparison of vehicle deformations; accident; vehicle kolision; insurance fraud; rectification program; forensic exploration.
Use of fluid viscous dampers in structural control, a case study
by Aboubaker Gherbi, Mourad Belgasmia
Abstract: This study focuses on the assessment of the buildings dynamic response under wind loads. It is known that any structure inherently dissipates and absorbs energy due to external loads thanks to the combination of its deformability, strength and flexibility. An improvement of this capacity could be achieved using fluid viscous dampers, concentrating mainly on their nonlinear behavior; a case study will illustrate the major impact of these devices on a RC tall building, subjected to wind turbulence. Wind have a great impact on the dynamic response of tall buildings, with its dynamic and random nature, it plays an important role in the design of civil structures. In this paper, the simulation of wind time histories is discussed, in order to fully cover all wind components to end up with proper results.
Keywords: Viscous fluid dampers; Energy dissipation; Wind speed samples; Nonlinear behavior; Time history analysis.
Effect of soil structure interaction on the response of R.C building to seismic loads, a case study
by Souhaib Bougherra, Mourad Belgasmia
Abstract: Soil structure interaction can significantly affect the behaviour of buildings subjected to seismic attacks, wind excitation and other dynamic loading types. Different researches were developed, demonstrating the importance of taking account of soil properties and its effect on changing the behaviour of the structures. It is common practice to analyse the structures assuming a fixed base but this approach is not appropriate for the reason that neglecting the soil parameters such as the stiffness and the damping affects the behaviour of the structure. Therefore, the nonlinear static approach provided the nonlinear response behaviour of a structure for different types of soil. The purpose of this paper is to discuss some proposed methods on taking account of soil-structure interaction that must be considered from the very beginning of the design process and to show how to prevent large deformations that can affect the stability of the entire structure.
Keywords: Capacity Curve; Damping; High-Rise RC Buildings; Nonlinear Analysis; Seismic loads; Soil-Structure Interaction; impedance coefficients.
Temperature Prediction Model for Flexible Pavements at Various Depths for the States of Arizona and Minnesota
by Karthikeyan Loganathan, Mayzan Isied, Mena Souliman
Abstract: Temperature variation significantly influences the selection of the asphalt binder grade. Also, since that the asphalt is a viscoelastic material, the critical responses such as surface deflection and stiffness of the asphalt layer will be highly affected by any temperature change. Most of the methods employed by transportation agencies to measure pavement temperature at present involve drilling a bore hole; therefore, generating a hazard that may cause pavement deterioration. A simple and non-destructive method to predict the pavement temperature is one of the important requirements for pavement engineers. This study created a model that can predict the pavement temperature at various depths utilizing basic climatic parameters such as air temperature, pavement surface temperature, relative humidity, and precipitation. Required data were extracted from an open source online database and the two generated models for the state of Minnesota and the state of Arizona were reliable with an acceptable coefficient of determination value.
Keywords: Hot mix asphalt; Pavement section; surface temperature; precipitation; regression analysis; viscoelastic; binder grade; viscosity variations; temperature prediction; and pavement temperature.
The Influence of Energy Attenuating Aircraft Seats on Lumbar Spine Burst Fractures: An Incident Reconstruction
by Geoffrey T. Desmoulin, Kevin G. Bird, Alexander R. MacIntosh
Abstract: Many serious injuries from helicopter crashes are due to large vertical loads transferred from the ground, through the aircraft frame and to the spine of the seated occupants. Helicopter manufacturers often aim to reduce these loadings through energy-attenuating seats. This report details the methodology used to reconstruct an incident and determine the loads experienced by the passengers, specifically a passenger who sat in the rear right seat of the helicopter and suffered a lumbar burst fracture. This was performed by (a) analysing and quantifying the injury, (b) analysing the damage to the seats to estimate impact forces, and (c) analysing the mechanism of failure of the landing strut to calculate the impact angle and validate the impact forces at the seat. Once the range of force experienced by the passenger was estimated, the effect of the choice of seat was investigated to determine if this injury could have been avoided using seats commercially available at the time of helicopter manufacturing.
Keywords: Helicopter; Incident Reconstruction; Seat Deformation; Helicopter Seat Choice; Crash Safety; Failure Analysis; Injury Analysis; Euler Buckling; Materials Science;.