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Displaying 11 Articles

The Standard of Care for Fastener Selection

By Mark Duckett, P.E., S.I.
Expert Article

The root cause analysis in many structural failure investigations leads directly to a failed connection, and ultimately to a failed fastener. The failure of a connection often leaves a structure…

Background of a Fastener Failure - Expert Investigation

By Dawn DiMarco
Expert Article

Materials science experts are often called upon to investigate fastener failures across a multitude of applications, from everyday consumer products to highly sophisticated industrial machinery. In…

Chair Collapse - Expert Investigates Wooden Chair Failure

By Les Winter, P.E.
Expert Article

This case involved a plaintiff who was injured when a front leg of the chair she sat upon gave way, causing the chair to pitch forward. As a result of the failure, the plaintiff fell to the ground and…

Failure Analysis of Glass & Other Ceramic Materials

By James Derby
Expert Article

Material science is divided into three categories: metals, ceramics, and polymers. In this article, materials expert James Derby provides an introduction to failure analysis and fractography as they…

Wind and the Trajectory of Falling Objects

By Mark Duckett, P.E., S.I.
Expert Article

Many forensic cases involve objects that fell from an elevated position and were affected, in some part, by the wind. Whether the end result was injury or property damage, there is frequently some…

Concrete Spalling

By Mark Duckett, P.E., S.I.
Expert Article

In this article, the civil and structural engineers at Robson Forensic provide an introductory lesson on concrete spalling. They address the common causes and why spalling is a problem. Concrete…

Investigating Aftermarket Parts Performance in Motorcycle Crash Incidents

By Roland Hoover
Expert Article

In this article, motorcycle expert Roland Hoover discusses aftermarket motorcycle parts and accessories. He examines the standard of care for vehicle manufacturers, part suppliers, mechanics, and…

Metallurgical Failure Analysis 101

By Dawn DiMarco
Expert Article

In this article, metallurgist, Dawn DiMarco provides an overview of the processes involved in a typical metallurgical failure analysis. Her discussion describes various properties of metals that can…

Wood Chair Failures

By Les Winter, P.E.
Expert Article

In this article, Professional Engineer and Woodworking Expert, Les Winter, P.E. discusses the causes of wood chair collapses which commonly lead to fall injuries. The experts at Robson Forensic have…

Forensic Metallurgy: Fracture Surface Examination

By Dawn DiMarco
Expert Overview

In this article, career Metallurgist, Dawn DiMarco provides an overview of fracture surface examination by revisiting various analyses involving failed fasteners. As a materials scientist at Robson…

Aircraft Engine Material Failures

By Robson Forensic
Expert Article

This article, written by our materials science practice, discusses a few case studies involving jet engine failure and what went wrong to cause it. It Is an Unfortunate Reality That Planes Crash Every…