Author: Jeffry Scott WelshPublisher:
ISBN:
Category : Composite materials
Languages : en
Pages : 2418
Book Description
Development of a True Triaxial Testing Facility for Composite Materials
Author: Jeffry Scott WelshPublisher:
ISBN:
Category : Composite materials
Languages : en
Pages : 2418
Book Description
Development of a True Triaxial Testing Facility for Composite Materials
Author: JS. WelshPublisher:
ISBN:
Category : Axial loads
Languages : en
Pages : 15
Book Description
An electromechanical testing facility capable of applying any combination of tensile and/or compressive forces to three mutually orthogonal axes of a thickness-tapered composite cruciform specimen was designed, fabricated, assembled, and evaluated. Any stress ratio in biaxial (?1 - ?2) or triaxial (?1 - ?2 - ?3) stress space can be explored using this computer-controlled test facility. A brief description of the testing machine and its capabilities as well as the present test specimen design is included. Once fully assembled, uniaxial and biaxial tests were performed on 6061-T6 aluminum using this facility. The excellent agreement between the uniaxial and biaxial results obtained in the present study for this material, with accepted handbook values and applicable failure theories, confirmed the performance of several aspects of the testing facility. These aspects included the intra-axis alignment, machine compliance, specimen fabrication and testing procedures, automated computer testing algorithms, data acquisition algorithms, and calibration values. In addition, biaxial and triaxial tests were performed on an AS4/3501-6 carbon/epoxy cross-ply laminate. While most of these tests are considered valid, they revealed aspects of the present thickness-tapered cruciform specimen design that could be improved. More specifically, an undesirable failure mode was encountered in some biaxial tension tests, and triaxial tension tests were not performed successfully. Nevertheless, the overall acceptable performance of the triaxial testing facility is believed to have been demonstrated.
Multiaxial Fatigue and Deformation
Author: Sreeramesh KalluriPublisher: ASTM International
ISBN: 9780803128651
Category : Science
Languages : en
Pages : 466
Book Description
Contains papers from a May 1999 symposium, describing state-of-the-art multiaxial testing techniques and analytical methods for characterizing fatigue and deformation behaviors of engineering materials. Papers are classified into sections on multiaxial strength of materials, multiaxial deformation,
Development Of A True Triaxial Testing Device For The Study Of The Constitutive Laws Of Low Strength Geotechnical Materials
Author: Kirsten Hendrik Albertus DanielPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Development Of A True Triaxial Testing Device For The Study Of The Constitutive Laws Of Low Strength Geotechnical Materials
Author: Kirsten Hendrik Albertus DanielPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Dissertation Abstracts International
Author: Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 860
Book Description
Development of a True Triaxial Testing Apparatus
Author: KR. ReddyPublisher:
ISBN:
Category : Cementation
Languages : en
Pages : 17
Book Description
A stress-controlled, flexible boundary, true (or cubical) triaxial apparatus has been developed to investigate the behavior of cemented sand under various stress paths which are not achievable using conventional axisymmetric triaxial apparatus. The apparatus components, specimen preparation, and test procedure are described. Tests were performed on cemented sand along different stress paths which included hydrostatic compression, conventional triaxial compression, and along different directions on octahedral planes. The test results indicate that stress-strain and volumetric response of cemented sand depends on stress path.
Polymer Matrix Composites
Author: United States. Dept. of DefensePublisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 502
Book Description
Research Centers Directory
Author: Publisher:
ISBN:
Category : Canada
Languages : en
Pages : 1284
Book Description
Research institutes, foundations, centers, bureaus, laboratories, experiment stations, and other similar nonprofit facilities, organizations, and activities in the United States and Canada. Entry gives identifying and descriptive information of staff and work. Institutional, research centers, and subject indexes. 5th ed., 5491 entries; 6th ed., 6268 entries.
Author: Robert T. Martin