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Earl answers your questions....

Earl answers your questions.... Earl A. Ruth, director of technology for Tinius Olsen Testing Machine Co. in Horsham, Pa., is also a member of the Tinius Olsen Executive Committee, which has responsibility for the daily operations of the company.In 1985, Earl became a member of ASTM International Committee E28 on Mechanical Testing, and he is now chair of the committee, a group of about 400 members responsible for 53 standards. Earl has been honored with the ASTM Award of Merit and title of fellow, in 2003, and has received four Awards of Appreciation from E28, in 1991, 1995, 1997, and 1998. He has been membership secretary, secretary, and vice chairman of E28 as well as chair of several subcommittees and task groups. Just recently, Earl has been named to a three-year term, 2007-2009, on the board of directors of ASTM International.Previously a member of the ASTM Committee on Standards (COS), which honored him with an Award of Appreciation in 2004, Earl chaired the COS Task Group on Measurement Uncertainty. In addition to his E28 work, Earl participates in standards development through the International Organization for Standardization (ISO). He is currently part of the U.S. delegation to ISO/TC164/SC1 Committee on Mechanical Testing, Subcommittee on Uniaxial Testing. Earl has also been a U.S. delegate to Subcommittee 4 on Pendulum Impact.Soon after graduating magna cum laude from the University of Missouri-Rolla in 1984 with a B.S. in engineering mechanics, Earl joined the Tinius Olsen staff as a mechanical engineer. As director of technology, he focuses on the design and development of materials testing machines as well as destructive and nondestructive equipment to evaluate materials and products.
 
Items Rating Hits
As the load the measurement through pressure transducer, how accurate it is compare to direct measurement devices like load cell? What is the mehod implied to compensate dynamically friction (pressure measured by transducer) generated for cylinder movemen   1744
Can the Tinius Olsen furnace for electromechanical test machines be used below 600 degrees C??   1684
Can Tinius Olsen IT542 meet JIS B7722 and JIS Z2242 requirements?   1666
Capacity of UTM   1565
Charpy Impact Tester - Pendulum Changing   265
Charpy Impact Tester - Pendulum Changing   272
choosing the right "new" machine   469
Dear Earl, we have just installed a Model 200 at the Dubai Municipality Central lab here and the QC manager had some questions on which he would like your opinion. 1) How do we calibrate the rate of motion of the lower crosshead. 2) How can we verify the   1740
DOCUMENTATION RESOURCES OF ELECTRICAL DIAGRAM   894
Earl, We have a 15 inch lo-cap with version 6 software. We have been asked to perform compression tests on it and have never done compression testing. Our Questioon is will our tensile test program work for compression testing or do we need something   1250
Hi Earl, Are there any changes planned to ASTM E-8, A-370 and other Standards coming up in the near future? I heard they are planning a separate standard for Metrification?   1629
Hi Earl, does it comply ASTM E8 for dumbell sample cutout from a cyclindrical petropipe and use to perform the tensile test ? will the curvature shape dumbell specimen give different result compare to standard straight cut and flat dumbell sample ?   1769
Hi Earl, How serious an effect does the speed of the test have on resultant tensile data? I'm seeing some variation between results and since I'm using an open loop TO system, speed control seems like its the major variable.   1696
I have referenced ASTM E 1876 - 01 "Dynamic Young's Modulus, Shear Modulus, and Poisson's Ratio by Impulse Excitation of Vibration" and found that you were on the E28 committee. If possible I would like to get a list of the exact equipment (sensors, suppo   1966
Measuring %Elongation & Reduction of Area of broken round tensile bars   912
measuring HARDNESS in metal particles, how? Particles .01 x.01 x .01mm   400
Mr. Earl I have some questions about chemical composition of 3 of hounsfield products of (Tensile Test Specimens) are: Low carbon steel,Hard drawn copper, and Aluminum can i answer you from your E-mail?my E-mail is; jhwan82@gmail.com   1657
Sample Size for Tensile test   517
Sample Size for Tensile test   585
test setting   780

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