1-9 of 9
Qin Ma
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

A Mixed-Mode Analysis of Two Parallel Non-Aligned Cracks in a Large Flat Plate Subjected to Remote Tension

Mordechai Perl, Cesar Levy, Qin Ma
Proc. ASME. IMECE2021, Volume 12: Mechanics of Solids, Structures, and Fluids; Micro- and Nano- Systems Engineering and Packaging, V012T12A055, November 1–5, 2021
Paper No: IMECE2021-71978
DOI: https://doi.org/10.1115/IMECE2021-71978
View Paper
PDF
Topics: Fitness-for-service, Flat plates, Fracture (Materials), Stress, Tension, Separation (Technology), Fracture (Process), Fracture mechanics, Engineering standards, Fatigue
Proceedings Papers

The Influence of a Non-Aligned Semi-Elliptical Embedded Crack on the Stress Intensity Factor Distribution Along the Front of a Quarter-Circle Corner Crack in a Semi-Infinite Plate Under Pure Bending

Cesar Levy, Qin Ma, Mordechai Perl
Proc. ASME. IMECE2020, Volume 14: Safety Engineering, Risk, and Reliability Analysis, V014T14A037, November 16–19, 2020
Paper No: IMECE2020-23285
DOI: https://doi.org/10.1115/IMECE2020-23285
View Paper
PDF
Topics: Corners (Structural elements), Fracture (Materials), Stress
Proceedings Papers

The Size Distribution of Cellulose Nanocrystals in the Variation of Acid-to-Microcellulose Crystals Ratio and Reaction Time Through Catalyzed Acid Hydrolysis

Yucheng Yang, Frank Fabian, Janice McKenzie, Kristyna Hyblova, Qin Ma
Proc. ASME. IMECE2020, Volume 3: Advanced Materials: Design, Processing, Characterization, and Applications, V003T03A018, November 16–19, 2020
Paper No: IMECE2020-23653
DOI: https://doi.org/10.1115/IMECE2020-23653
View Paper
PDF
Topics: Crystals, Nanocrystals, Fourier transform infrared spectroscopy, Spectroscopy, Titanium, Diffraction, Fourier transforms, Lasers, Mechanical properties, Polymers
Journal Articles

The Effect of a Three-Dimensional Quarter-Circle Corner Crack on the Stress Intensity Factors of a Nonaligned Semi-Elliptical Surface Crack in an Semi-Infinite Solid Under Uniaxial Tension

Cesar Levy, Mordechai Perl, Qin Ma
Journal: Journal of Pressure Vessel Technology
Article Type: Research-Article
J. Pressure Vessel Technol. June 2021, 143(3): 031505.
Paper No: PVT-20-1032
DOI: https://doi.org/10.1115/1.4048840
Published Online: November 18, 2020
View Article
PDF
Topics: Corners (Structural elements), Fracture (Materials), Stress, Surface cracks
Proceedings Papers

Stress Intensity Factors for an Edge Crack Interacting With an Embedded Parallel Crack for a Finite Plate Under Pure Bending

Qin Ma, Mordechai Perl, Cesar Levy
Proc. ASME. PVP2019, Volume 1: Codes and Standards, V001T01A099, July 14–19, 2019
Paper No: PVP2019-93248
DOI: https://doi.org/10.1115/PVP2019-93248
View Paper
PDF
Topics: Fracture (Materials), Stress, Separation (Technology), Fitness-for-service, Bending (Stress), Fracture mechanics
Proceedings Papers

The Effect of Pedicle Screw Thread Shape on the Stress Concentration Under Lateral Bending

Yucheng Yang, Qin Ma
Proc. ASME. PVP2019, Volume 5: High-Pressure Technology; Rudy Scavuzzo Student Paper Symposium and 27th Annual Student Paper Competition; ASME Nondestructive Evaluation, Diagnosis and Prognosis Division (NDPD), V005T09A002, July 14–19, 2019
Paper No: PVP2019-93162
DOI: https://doi.org/10.1115/PVP2019-93162
View Paper
PDF
Topics: Shapes, Spinal pedicle screws, Stress concentration, Thread, Stress, Bone, Finite element analysis, Fracture (Materials), Fracture (Process), Biomedicine
Proceedings Papers

Temperature Profile and its Effect on Hardness Numbers of a Mild Steel Butt Weld

Qin Ma
Proc. ASME. PVP2019, Volume 6B: Materials and Fabrication, V06BT06A056, July 14–19, 2019
Paper No: PVP2019-93247
DOI: https://doi.org/10.1115/PVP2019-93247
View Paper
PDF
Topics: Steel, Temperature profiles, Heat, Cycles, Finite element methods, Gas tungsten arc welding, Thermal expansion, Welding, Arc welding, Deformation
Proceedings Papers

Analogy Between Transient Heat Conduction and Dissolution of Solid Particles in Liquids Based on the Shrinking Core Model

Qin Ma
Proc. ASME. HT2017, Volume 2: Heat Transfer Equipment; Heat Transfer in Multiphase Systems; Heat Transfer Under Extreme Conditions; Nanoscale Transport Phenomena; Theory and Fundamental Research in Heat Transfer; Thermophysical Properties; Transport Phenomena in Materials Processing and Manufacturing, V002T16A001, July 9–12, 2017
Paper No: HT2017-5009
DOI: https://doi.org/10.1115/HT2017-5009
View Paper
PDF
Topics: Particulate matter, Shrinkage (Materials), Transient heat transfer, Drugs, Shapes, Differential equations, Diffusion (Physics), Geometry, Mass transfer, Modeling
Proceedings Papers

Crack Non-Circularity and Finite Erosion Effects on the 3D SIFs of a Bauschinger Modified Pressurized Thick-Walled Cylinder

Qin Ma, Cesar Levy, Mordechai Perl
Proc. ASME. PVP2015, Volume 3: Design and Analysis, V003T03A025, July 19–23, 2015
Paper No: PVP2015-45006
DOI: https://doi.org/10.1115/PVP2015-45006
View Paper
PDF
Topics: Cylinders, Erosion, Fracture (Materials), Autofrettage, Fatigue life, Finite element analysis, Materials properties, Numerical analysis, Residual stresses, Stress