Construction Accident Investigations


Construction Accidents Construction Accidents Construction Accidents			Construction Accidents

		Concrete Pumping Truck Metallurgical failure analysis was requested on a failed piece of construction equipment. A leveling outrigger arm attached to a concrete pumping truck cracked through a weld resulting in an accident. Metallurgical testing of the weld and surrounding metal was conducted. A design analysis was also conducted on the stabilizing outrigger arm. Metallurgical testing in addition to macro and microscopic examination determined that the cause of the cracking and failure of the outrigger was metal fatigue. The properties of the weld and surrounding metal were satisfactory. As a result of Failure Element Analysis (FEA), it was determined that the cause of the accident was faulty design and a lack of proper inspection and maintenance.
	Dr. R. Craig Jerner, Ph.D., PE specializes in accident investigation and metallurgical failure analysis, with over 30 years experience as a metallurgical consultant and accident investigator. He has testified as a metallurgical expert in over 250 depositions and more than 70 court appearances. If you or someone you know should need the services of Dr. Jerner and J.E.I. Metallurgical, please visit our web site at the buttons below, or e-mail Dr. Jerner --- r.c.jerner@metallurgist.com

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Concrete Pumping Truck