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Designing and manufacturing of a drop weight impact test machine

A state of the art instrumented Drop Weight Impact Tester Machine was developed in Iran University of Science and Technology which measures the energy absorption of composite materials under impact load. | Nội dung Text Designing and manufacturing of a drop weight impact test machine Engineering Solid Mechanics 1 2013 69-76 Contents lists available at GrowingScience Engineering Solid Mechanics homepage www.GrowingScience.com esm Designing and manufacturing of a drop weight impact test machine F. Taheri-Behrooz M.M. Shokrieh and H.R. Abdolvand Composites Research Laboratory School of Mechanical Engineering Iran University of Science and Technology Tehran 16846-13114 Iran ARTICLE INFO ABSTRACT Article history A state of the art instrumented Drop Weight Impact Tester Machine was developed in Iran Received January 20 2013 University of Science and Technology which measures the energy absorption of composite Received in Revised form materials under impact load. The output of the machine is used to draw load- time graph and July 2 2013 calculate the amount of energy absorbed by the specimens. The machine was equipped with Accepted 6 August 2013 Available online various sensor systems to measure the velocity of the impactor just before it contacts the 7 August 2013 specimen and the amount of contact force and with a data acquisition system to record the Keywords force and time history. Capability of testing according to many different types of standards and Drop Weight Test capability of studying behaviour of the specimen after impact are two important characteristics Manufacturing of this machine. This designed system after manufacturing and calibration was installed and Toughness successfully utilized. Composites Impact 2013 Growing Science Ltd. All rights reserved. 1. Introduction Because of high specific strength and modulus low specific density and corrosion resistance fibre reinforced plastics are used in vast majority of fields such as aerospace transportation and building structures. In order to optimize designing with these materials it is necessary to perform standard tests and find out their mechanical properties. Toughness is an important property of composite