Compressive Stress-strain Properties of 2024-T3 Aluminum-alloy Sheet at Elevated Temperatures PDF Download
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Author: Eldon E. Mathauser
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages : 66
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Book Description
Compressive stress-strain test results for 2024-T3 aluminum-alloy sheet are presented for temperatures ranging from room temperature to 700 degrees F and for exposure times from 0.1 to 100 hours. All specimens were loaded parallel to the rolling direction of the sheet and tested at a nominal strain rate of 0.002 per minute. Stress-strain curves are presented for each temperature and exposure time investigated, and significant design data obtained from the curves (compressive yield stress, Young's modulus, secant and tangent moduli, and two stresses useful for determining the maximum compressive strength of plates) are presented in graphical and tabular form. A rate-process relationship is used to determine the exposure time that produces a maximum compressive yield stress for a given temperature and a time-temperature parameter derived from rate-process theory is used to present the compressive yield stresses as a single master curve.
Author: Eldon E. Mathauser
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages : 66
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Book Description
Compressive stress-strain test results for 2024-T3 aluminum-alloy sheet are presented for temperatures ranging from room temperature to 700 degrees F and for exposure times from 0.1 to 100 hours. All specimens were loaded parallel to the rolling direction of the sheet and tested at a nominal strain rate of 0.002 per minute. Stress-strain curves are presented for each temperature and exposure time investigated, and significant design data obtained from the curves (compressive yield stress, Young's modulus, secant and tangent moduli, and two stresses useful for determining the maximum compressive strength of plates) are presented in graphical and tabular form. A rate-process relationship is used to determine the exposure time that produces a maximum compressive yield stress for a given temperature and a time-temperature parameter derived from rate-process theory is used to present the compressive yield stresses as a single master curve.
Author: William M. Roberts
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 18
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Book Description
Results are presented of compressive stress-strain tests of 24S-T3 aluminum-alloy sheet at stabilized elevated temperatures up to 700 degrees F, exposure times of 1/2 to 2 hours, and strain rates of 0.002 to 0.006 per minute. Some general comparisons with extruded 75S-T6 aluminum alloy are included.
Author: George J. Heimerl
Publisher:
ISBN:
Category : Materials
Languages : en
Pages : 48
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Book Description
Author: D. R. Adolphson
Publisher:
ISBN:
Category : Aluminum alloys
Languages : en
Pages : 50
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Book Description
This technical memorandum is a compilation of available elevated temperature data for 2024-T3 aluminum alloy. Included are mechanical and thermal data. Besides the variable of temperature, the effects of time at temperature, rate of loading, and rate of heating are included.
Author: Eldon E. Mathauser
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages : 18
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Book Description
The results of elevated-temperature compressive strength and creep tests of 2024-T3 (formerly 24S-T3) aluminum-alloy plates supported in V-grooves are presented. For determining elevated-temperature strength, where creep effects are negligible, a relation previously developed for predicting plate compressive strength at room temperature was satisfactory. Creep-lifetime results are presented for the plates in the form of master creep-lifetime curves by using a time-temperature parameter that is convenient for summarizing tensile creep-rupture data. A comparison is made between tensile and compressive creep lifetime for the plates, and the magnitude by which the design stress is decreased because of material creep and loss of strength due to exposure at elevated temperatures is indicated.
Author: Eldon E. Mathauser
Publisher:
ISBN:
Category :
Languages : en
Pages : 66
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Book Description
Author: George J. Heimerl
Publisher:
ISBN:
Category : Materials
Languages : en
Pages : 44
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Book Description
Author: Eldon E. Mathauser
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 40
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Book Description
The results of elevated-temperature compressive strength and creep tests of 2024-T3 (formerly 24S-T3) aluminum-alloy plates supported in V-grooves are presented. The strength-test results indicate that a relation previously developed for predicting plate compressive strength for plates of all materials at room temperature is also satisfactory for determining elevated-temperature strength. Creep-lifetime results are presented for plates in the form of master creep-lifetime curves by using a time-temperature parameter that is convenient for summarizing tensile creep-rupture data. A comparison is made between tensile and compressive creep lifetime for the plates and a method that makes use of time-dependent stress-strain curves for predicting plate-creep failure stresses is investigated.
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 348
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Book Description
Author: P. R. Dioguardo
Publisher:
ISBN:
Category : Alloys
Languages : en
Pages : 148
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Book Description
Short time tensile and compressive properties were evaluated for Rene' 41 and Haynes 25 sheet alloys at room temperature and 800 to 2200 F. Tests conducted at various strain rates (0.00001 to 0.1 in./in.sec) produced significant differences in strength, particularly at elevated temperatures. Creep properties, both tensile and compressive, were determined for the same alloys at temperatures of 1600 to 2200 F and times up to 15 minutes. At the higher stress levels, creep rates became very rapid and considerable amounts of plastic strain occurred in times of 1 sec or less. A preliminary study was conducted on the use of programmed, forced strain rate tests to predict short time creep properties.
