M
Mathew Duffy Ingraham
Researcher at Sandia National Laboratories
Publications - 36
Citations - 488
Mathew Duffy Ingraham is an academic researcher from Sandia National Laboratories. The author has contributed to research in topics: Shear stress & Borehole. The author has an hindex of 8, co-authored 34 publications receiving 323 citations. Previous affiliations of Mathew Duffy Ingraham include Clarkson University.
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Response of Castlegate sandstone to true triaxial states of stress
TL;DR: In this article, a suite of true triaxial tests were performed on Castlegate sandstone to assess the influence of the intermediate principal stress on mechanical response and failure, and the results showed that failure at low mean stresses depends on the third invariant of deviatoric stress.
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ISRM Suggested Method: Determining Deformation and Failure Characteristics of Rocks Subjected to True Triaxial Compression
Xia-Ting Feng,Xia-Ting Feng,Bezalel C. Haimson,Xiaochun Li,Chandong Chang,Xiaodong Ma,Xiwei Zhang,Mathew Duffy Ingraham,Kenichiro Suzuki +8 more
TL;DR: In this article, the authors introduce a guideline on determining deformation and failure characteristics of rocks subjected to true triaxial compression on different stress path. But this guideline is not applicable to all types of rocks.
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Effects of spatial heterogeneity and material anisotropy on the fracture pattern and macroscopic effective toughness of Mancos Shale in Brazilian tests
TL;DR: In this article, the impact of local heterogeneity and material anisotropy on the geomechanical behavior of shale cracks was investigated using an indirect tensile splitting method, and the evolution of strain field was obtained using digital image correlation.
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Low cycle fatigue of aluminum foam
TL;DR: In this paper, an experimental investigation into the tension-compression fatigue behavior and failure mode of closed-cell aluminum foam was conducted, and the results indicated that compaction assisted crack propagation was an important driving force in the failure process.
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Use of acoustic emissions to investigate localization in high-porosity sandstone subjected to true triaxial stresses
TL;DR: In this paper, the authors used acoustic emissions to investigate the evolution of damage and strain localization in Castlegate sandstone specimens subjected to true triaxial states of stress, where the intermediate principal stress ranged from equal to minimum compression to equal to maximum compression.