NUMERICAL ANALYSIS OF PRESTRESSED CONCRETE SLAB SUBJECTED TO MISSILE IMPACT
Kalimi Raju
, B. H. L. Siri Savithri , M. V. V. Satyanarayana , S. Durga Sai Kumar
Prestressed concrete slabs, Missile impact, Impact velocity, Concrete damage plasticity (CDP), Crack initiation, Damage propagation, Energy absorption
Prestressed concrete (PSC) slabs are being more widely used today due to improved mechanical properties and durability in comparison with conventional reinforced concrete systems, hence achieving higher load-carrying capacity, better serviceability and increased durability, as well as less deflection and damage accumulation. PSC slabs are currently employed in important structural elements like bridge decks, high-rise buildings, industrial plants, nuclear containment structures, and protective structures under severe loading conditions. The impact and missile loading of structural members results in greatly improved structural responses by restraining tensile failure and preventing crack growth and absorbing more energy. A finite element model of prestressed concrete slab subjected to missile impact is constructed and employed in the present work to study the structural behavior under different impact velocity. The study is aimed at examining the crack initiation and propagation of PSC slab under various levels of loading. Concrete damage plasticity (CDP), strain rate effects and surface-to-surface contact interaction between the projectile and target slab are employed to determine the damage propagation process and fracture behavior under the projectile impact. The results indicate that the application of prestress force strengthens and improves the load-carrying capacity of the slab, delaying the crack initiation. At different velocity levels, the crack propagation rate is reduced in prestressed condition comparing to non-prestressed or lower prestressed condition, showing the best performance under the impact load.
"NUMERICAL ANALYSIS OF PRESTRESSED CONCRETE SLAB SUBJECTED TO MISSILE IMPACT ", JETNR - JOURNAL OF EMERGING TRENDS AND NOVEL RESEARCH (www.JETNR.org), ISSN:2984-9276, Vol.4, Issue 4, page no.b702-b705, April-2026, Available :https://rjpn.org/JETNR/papers/JETNR2604226.pdf
Volume 4
Issue 4,
April-2026
Pages : b702-b705
Paper Reg. ID: JETNR_233820
Published Paper Id: JETNR2604226
Downloads: 00026
Research Area: Science and Technology
Country: Kakinada , Andhra Pradesh, India
ISSN: 2984-9276 | IMPACT FACTOR: 9.87 Calculated By Google Scholar | ESTD YEAR: 2023
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 9.87 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator
Publisher: RJPN (IJPublication) Janvi Wave
