Study on Creep Mechanical Properties of HTPB Solid Propellant.

Li Jin, Siqi Jia, Ze Zhang, Zicong An, Zhenkun Lu

Abstract read

In one paragraph

Article in Materials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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0 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Li JinSchool of Renewable Energy, Inner Mongolia University of Technology, Ordos 017010, China.ORCID 0009-0000-0532-7502

Siqi JiaSchool of Renewable Energy, Inner Mongolia University of Technology, Ordos 017010, China.

Ze ZhangSchool of Renewable Energy, Inner Mongolia University of Technology, Ordos 017010, China.

Zicong AnSchool of Renewable Energy, Inner Mongolia University of Technology, Ordos 017010, China.ORCID 0000-0003-0703-9410

Zhenkun LuSchool of Robot Engineering, Wenzhou University of Technology, Wenzhou 325035, China.

Funding

Ordos City Science and Technology Breakthrough Project: Major Initiatives for Open Competition and Leadership Recruitment in 2025 JB20251427Strategic Pioneering Science and Technology Project of NJUST in 2024 DC2400003360, DC2400003370 and DC2400003355

6 · The paper itself

Abstract

Solid rocket propellants based on hydroxyl-terminated polybutadiene (HTPB), in which HTPB acts as the polymeric binder and fuel matrix, are widely used in aerospace propulsion. During storage, transport, and service, these composite energetic materials are exposed to sustained mechanical loads as well as environmental variations, which may induce time-dependent inelastic deformation. Such creep deformation can alter the grain geometry, affect combustion stability, and reduce the structural reliability of rocket motors. In this work, room-temperature tensile creep tests were conducted on an HTPB-based solid propellant under different stress levels. Several viscoelastic and power-law constitutive models were compared, and a composite time-hardening creep model was established to describe the experimental strain-time response. The model was further implemented in Abaqus through a Fortran user subroutine for finite element simulation. The results provide a useful basis for creep deformation assessment, formulation optimization, and structural reliability analysis of HTPB-based propellants.

Indexed as

constitutive modelcreephydroxyl-terminated polybutadiene (HTPB)simulation

Identifiers

PMID42195595

DOI10.3390/ma19101951

PMCPMC13208949

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LicenceCC BY

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.