2026-10-06T18:36:41Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34014693 2026-09-28T16:14:10Z category_26536 category_28813 category_26779 category_26764 category_26770 category_30289 category_26773 category_29776 category_26755 category_30142 category_30127 category_29812 category_29224 category_29815 category_29821 category_29212 category_25789 category_24964 category_26533 category_29011 category_24979 category_24988 category_25012 category_24973 category_24994 category_25168 item_type_3 month_year_09_2026

Dynamic Mode I Crack Propagation in Epoxy Material: Unpatched vs. Symmetrically Patched Configurations (Dynamic Photoelasticity) Pravinkumar Ghodake (3701242) Engineering education Applications in physical sciences Mechanical engineering not elsewhere classified Mechanical engineering asset management Numerical modelling and mechanical characterisation Other physical sciences not elsewhere classified Solid mechanics Theoretical and applied mechanics Acoustics and noise control (excl. architectural acoustics) Acoustics and acoustical devices; waves Nonlinear optics and spectroscopy Numerical analysis Numerical computation and mathematical software Numerical solution of differential and integral equations Numerical and computational mathematics not elsewhere classified Computational complexity and computability Computational modelling and simulation in earth sciences Data visualisation and computational (incl. parametric and generative) design Engineering design Computer aided design Design practice and methods Industrial and product design Design not elsewhere classified Design history, theory and criticism Models and simulations of design Theory and design of materials fracture mechanics dynamic fracture Mode I crack propagation photoelasticity dynamic photoelasticity epoxy resin symmetric patch crack arrest experimental mechanics solid mechanics IIT Kanpur Engineering Mechanical Engineering Mechanical Engineering Labs Mechanics of materials Mechanics of Materials Experimental mechanics Physical Sciences Materials Science Pravinkumar Ghodake Pravinkumar Ramchandra Ghodake Design Optimization Design & Technology Generative design research Elastodynamics simulations Composite materials Fiber Metal Laminates Impact mechanics Experimental Study: Dynamic Mode I Crack Propagation in Epoxy Using Dynamic PhotoelasticityThis dataset presents a series of high-speed dynamic photoelasticity images capturing Dynamic Mode I crack propagation in epoxy resin specimens. The experiments were conducted at the Indian Institute of Technology Kanpur (IIT Kanpur) to investigate the influence of symmetric patching on dynamic fracture behavior.Experimental Methodology: Dynamic fracture experiments were performed using a modified Split Hopkinson Pressure Bar (SHPB) a dynamic loading apparatus to initiate and propagate a Mode I crack. The dynamic stress field around the propagating crack tip was visualized using the dynamic photoelasticity technique. Imaging Parameters: The photoelastic fringe patterns were recorded using a high-speed digital camera (e.g., Photron FASTCAM or equivalent) operating at a frame rate of 100,000 frames per second (fps). The camera exposure time was set to 1/1,000,000 seconds (1 µs) to minimize motion blur during the high-velocity crack propagation. The field of view was captured at a spatial resolution of 192 × 192 pixels. Specimen Configurations & Results: The dataset includes three distinct experimental configurations, each represented by a sequence of 9 frames (spanning from approximately 210 µs to 250 µs after crack initiation): <ol><li>Dynamic Fracture without Patch: Baseline specimen. The isochromatic fringe patterns reveal the classic Mode I crack tip stress field, demonstrating unimpeded crack propagation through the epoxy matrix.</li><li>Dynamic Fracture with Symmetric Patch I: The specimen includes a symmetric patch configuration. The presence of the patch alters the local stiffness and wave impedance, which is clearly reflected in the distortion and interaction of the photoelastic fringes with the patch boundaries.</li><li>Dynamic Fracture with Symmetric Patch II: A second symmetric patch configuration. The high-speed sequence captures the crack's interaction with the patch interface, showing variations in fringe density and crack tip stress intensity compared to the unpatched and Patch I configurations.</li></ol>Data Contents:<ul><li>Three high-resolution composite images (each containing 9 sequential frames).</li><li>Each frame includes a metadata overlay indicating the time (µs), frame rate (fps), frame number, and spatial resolution.</li></ul>Associated Research: This experimental data supports research in dynamic fracture mechanics, crack arrest mechanisms, and the design of toughened composite materials. Research Portfolio: <a href="https://sites.google.com/view/pravinkumarghodake/research" target="_blank" rel="noreferrer">https://sites.google.com/view/pravinkumarghodake/research</a> 2026-09-28T16:14:10Z Dataset Dataset 10.6084/m9.figshare.34014693.v2 https://figshare.com/articles/dataset/Dynamic_Mode_I_Crack_Propagation_in_Epoxy_Material_Unpatched_vs_Symmetrically_Patched_Configurations_Dynamic_Photoelasticity_/34014693 CC BY 4.0