The First Instron® Test Machine - ASTM International · INSTRON TENSILE TESTING INSTRUMENT...
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The First Instron ® Test Machine Joseph Amaral
Transcript of The First Instron® Test Machine - ASTM International · INSTRON TENSILE TESTING INSTRUMENT...
The First Instron® Test MachineJoseph Amaral
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Historical Background
• Fibers/Textiles• Wallace Carothers• Strain gauge development• WW II
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MIT Environment
Pre-War 1943Enrollment 3,100 4,500 (1,500 Army,
1,600 Navy, 1,400 Civilians)
Staff 1,100 4,300Expenditures $4,000,000 $23,000,000Space +450,000 sq. ft fab.
+250,000 sq. ft rented
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The Project
• George S. Burr, Harold Hindman• Test materials that could replace silk in military
applications (nylon, rayon)- Broad test requirements- Closed loop control of velocity/position - Loads to test fibers through textile structures- Measure load elongation
• Instrumented Drop Weight Tester• Tension/Compression Test Machine
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GE Amplidyne Motor Generator
• Ernst Alexanderson• Gun tracking and radar control
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Servo Drive System
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Early Load Cells
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Tension and Compression Cells
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Load-weighing System
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Location of Various Assemblies
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Universal Testing Instrument
