What question did this study set out to answer?

The aim is to evaluate how soft substrates affect electroadhesion performance in contact applications.

January 22, 2026MRS Communications0 citationsOpen Access

Soft-backing enhanced composite electroadhesion

JAJeffrey T. AulettaDEVCOM Army Research Laboratory KHKevin P. T. HaughnDEVCOM Army Research Laboratory MMMadeline MoralesDEVCOM Army Research Laboratory

Key Points

The aim is to evaluate how soft substrates affect electroadhesion performance in contact applications.
Applied electroadhesion with soft backing materials.
Measured normal, peel, and shear traction forces under multi-axial loading conditions.
Assessed the effect of contact stiffness on traction stability.
Increased normal force by 8–24 kPa with soft backing.
Peel force improved to 2–4 kPa due to enhanced compliance.
Shear traction rose from 20–106 kPa, indicating better contact energy retention.

Abstract

Abstract This work presents an application of electroadhesion (EA) where a soft substrate is used to accommodate misalignments and surface roughness increasing normal & peel force potential. Poor alignment during multi-agent contact will create multi-axial loading requiring greater normal and peel strength than is normally considered for EA clutching and braking. Results show compliant backing increases the EA normal (8–24 kPa), peel (2–4 kPa), and shear tractions (20–106 kPa) at the expense of only contact stiffness. The displacement over which the contact maintained a traction was also increased with a soft backing increasing the contact energy in all cases. Graphical Abstract

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