Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
INVESTIGATION OF ANOMALOUS BEHAVIOR IN METALLIC-BASED MATERIALS UNDER COMPRESSIVE LOADING... NASA/TM-1998-206640... OCT. 26, 1998
Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Investigation of Anomalous Behavior in Metallic-Based Materials Under Compressive Loading
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722319137
Category :
Languages : en
Pages : 26
Book Description
An anomalous material response has been observed under the action of applied compressive loads in fibrous SiC/Ti (both Ti-6242 and Ti-15-3 alloys) and the monolithic nickel-base alloy IN-718 in the aged condition. The observed behavior is an increase, rather than a decrease, in the instantaneous Young's modulus with increasing load. This increase is small, but can be significant in yield surface determination tests, where an equivalent offset strain on the order of 10 micron(1 x 10(exp -6) m/m) is being used. Stiffening has been quantified by calculating offset strains from the linear elastic loading line. The offset strains associated with stiffening during compressive loading are positive and of the same order as the target offset strains in yield surface determination tests. At this time we do not have a reasonable explanation for this response nor can we identify a deformation mechanism that might cause it. On the other hand, we are not convinced that it is an artifact of the experimental procedure because a number of issues have been identified and seemingly ruled out. In fact, stiffening appears to be temperature dependent, since it decreases as the temperature increases. Gil, Christopher M. and Lissenden, Cliff J. and Lerch, Bradley A. Glenn Research Center RTOP 523-21-13...
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722319137
Category :
Languages : en
Pages : 26
Book Description
An anomalous material response has been observed under the action of applied compressive loads in fibrous SiC/Ti (both Ti-6242 and Ti-15-3 alloys) and the monolithic nickel-base alloy IN-718 in the aged condition. The observed behavior is an increase, rather than a decrease, in the instantaneous Young's modulus with increasing load. This increase is small, but can be significant in yield surface determination tests, where an equivalent offset strain on the order of 10 micron(1 x 10(exp -6) m/m) is being used. Stiffening has been quantified by calculating offset strains from the linear elastic loading line. The offset strains associated with stiffening during compressive loading are positive and of the same order as the target offset strains in yield surface determination tests. At this time we do not have a reasonable explanation for this response nor can we identify a deformation mechanism that might cause it. On the other hand, we are not convinced that it is an artifact of the experimental procedure because a number of issues have been identified and seemingly ruled out. In fact, stiffening appears to be temperature dependent, since it decreases as the temperature increases. Gil, Christopher M. and Lissenden, Cliff J. and Lerch, Bradley A. Glenn Research Center RTOP 523-21-13...
Investigation of Anomalous Behavior in Metallic-Based Materials Under Compressive Loading
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 30
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 30
Book Description
The Northeast Missouri Soil Health Guide
Author:
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 59
Book Description
Publisher:
ISBN:
Category : Soils
Languages : en
Pages : 59
Book Description
Farmer Direct Marketing Bibliography
Author: Jennifer-Claire V. Klotz
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 84
Book Description
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 84
Book Description
U.S. Government Subscriptions
Author:
Publisher:
ISBN:
Category : Booksellers' catalogs
Languages : en
Pages : 864
Book Description
Publisher:
ISBN:
Category : Booksellers' catalogs
Languages : en
Pages : 864
Book Description
Your Guide for the American Community Survey
Author:
Publisher:
ISBN:
Category : American community survey
Languages : en
Pages : 16
Book Description
Publisher:
ISBN:
Category : American community survey
Languages : en
Pages : 16
Book Description
Cotton Ginnings
Author:
Publisher:
ISBN:
Category : Cotton gins and ginning
Languages : en
Pages : 10
Book Description
Cotton ginned by counties.
Publisher:
ISBN:
Category : Cotton gins and ginning
Languages : en
Pages : 10
Book Description
Cotton ginned by counties.
1997 Census of Agriculture
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 320
Book Description
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 320
Book Description
Income Tax Treatment of Cooperatives: Patronage refunds
Author: Donald A. Frederick
Publisher:
ISBN:
Category : Agricultural industries
Languages : en
Pages : 88
Book Description
Publisher:
ISBN:
Category : Agricultural industries
Languages : en
Pages : 88
Book Description