公开(公告)号：US20210214021A1

公开(公告)日：2021-07-15

申请号：US16741252

申请日：2020-01-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Venkateshwar R. Aitharaju ,  Xiaosong Huang ,  Gurpinder Dhaliwal ,  David E Roth ,  Tejas R. Bhavsar

IPC: B62D29/04 ,  B60R19/02 ,  B60R19/03 ,  B62D21/15

Abstract: Presented are multilayer, fiber-reinforced impact protection structures with honeycomb-core or corrugated-layer designs, methods for making/using such structures, and vehicles with traction battery packs supported on skid plates fabricated from such structures. A multilayer impact protection structure includes a first layer with continuous fibers embedded in a polymeric matrix, and a second layer that is attached to the first layer and includes an elastomeric polymer. A third layer, which is attached to one side of the first layer opposite that of the second layer, includes a fiber-reinforced polymer honeycomb and/or corrugated structure. An optional fracture detection circuit is attached to the first or third layer, and is configured to detect a break in the impact protection structure. The corrugated structure may include multiple reinforcement ribs that are interposed within and substantially orthogonal to a series of mutually parallel, elongated ridges. Comparatively, the honeycomb structure includes a lattice of adjoining polygonal cells.

公开(公告)号：US11208155B2

公开(公告)日：2021-12-28

申请号：US16741252

申请日：2020-01-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Venkateshwar R. Aitharaju ,  Xiaosong Huang ,  Gurpinder Dhaliwal ,  David E Roth ,  Tejas R. Bhavsar

IPC: B62D29/04 ,  B60R19/02 ,  B60R19/03 ,  B62D21/15 ,  B60R19/18

Abstract: Presented are multilayer, fiber-reinforced impact protection structures with honeycomb-core or corrugated-layer designs, methods for making/using such structures, and vehicles with traction battery packs supported on skid plates fabricated from such structures. A multilayer impact protection structure includes a first layer with continuous fibers embedded in a polymeric matrix, and a second layer that is attached to the first layer and includes an elastomeric polymer. A third layer, which is attached to one side of the first layer opposite that of the second layer, includes a fiber-reinforced polymer honeycomb and/or corrugated structure. An optional fracture detection circuit is attached to the first or third layer, and is configured to detect a break in the impact protection structure. The corrugated structure may include multiple reinforcement ribs that are interposed within and substantially orthogonal to a series of mutually parallel, elongated ridges. Comparatively, the honeycomb structure includes a lattice of adjoining polygonal cells.