WebA MOOG high performance servo-valve with a 15GPM capacity is used to achieve a maximum stroke rate of 1500mm/s. A KISTLER 9500A4 ±30kN piezoelectric load cell, which is located directly above the upper grip assembly, measures the load during the test while the enhanced laser displacement system (ELDS) may be used to measure the displacement. WebJan 25, 2016 · In this paper, the methods for dynamic loading of polymers will be briefly reviewed. The high strain rate mechanical properties of several classes of polymers, i.e. …

Dynamic Tensile Behavior of Steel HRB500E Reinforcing Bar at …

WebLow strain rate tests were performed using a servo-hydraulic Instron machine at a constant strain rate of 105 s1 and a constant temperature, using a MTS short furnace. The high strain rate tests were performed using a Hopkinson bar in conjunction with a special furnace, testing at strain rates of about 103 s1. WebJul 1, 2015 · Although modified servo-hydraulics are typically rated for higher loading rates (10 m s −1 ), at strain rates above 100 s −1 these systems become unreasonably difficult … northern medical group fax

AT VARIOUS SLOW STRAIN RATES ABSTRACT …

WebNov 23, 2015 · Servo-hydraulic testing machines are capable of testing materials at medium strain rate conditions and in different loading types [ 3, 17, 24, 25, 27 – 29 ]; however, their major drawback compared to drop tower apparatuses remains their cost efficiency. Webof either 70, 140 or 210 microstrains per second. The lower strain level was 101. of the strain, <~m), attained at maximum stress by similar prisms which were loaded monotonically at the same strain rate. The upper strain level was 301., 407. or 801. of (Em). WebBennet Servo Hydraulic Ltd Oct 2003 - Present 19 years 7 months. Buckinghamshire Principal Engineer Instron L:td ... Manufacture of … how to router door hinges