MUMBAI, India, June 13 -- Intellectual Property India has published a patent application (202417073723 A) filed by The Regents Of The University Of Michigan, Ann Arbor, U.S.A., on Sept. 30, 2024, for 'user element technique for enabling coarse-model/high-fidelity computer-aided engineering durability evaluation of spot-joined structures.'
Inventor(s) include Zhang Lunyu; Wu Shengjia; and Dong Pingsha.
The application for the patent was published on June 13, under issue no. 24/2025.
According to the abstract released by the Intellectual Property India: "A method for modeling joints using User Element (UEL) techniques by analytically eliminating a series of internal degrees of freedom for representing actual weld or joint stiffness in structures. The resulting formulation is in closed-forms enabling computational accuracy and simplicity for structural applications. For spot joint, the detailed ring type of finite elements required to achieve a reasonable accuracy can be replaced by a simple finite element mesh using just four user elements. The UEL joint modeling method offers accurate stress calculation results by comparing with the mesh-insensitive structural stress method coupled with a detailed explicit joint representation of joints. The UEL method can also be applied for modeling seam welded joints, e.g., MIG, laser, and friction stir welds. The explicit representation of weld fillet geometry required by existing methods is no longer needed by the UEL plate/shell elements without losing any accuracy."
The patent application was internationally filed on Mar. 01, 2023, under International application No.PCT/US2023/014255.
Disclaimer: Curated by HT Syndication.
