In　order　to　obtain　the　mechanism　of　chest　injury　under　explosion　shock　waves,　a　high　fidelity　digital　dummy　model　(total　human　model　for　safety,　THUMS)　was　used　to　construct　a　numerical　model　of　the　human-explosion　flow　field　using　the　Load_Blast_Enhanced　method　and　the　arbitrary　Lagrange-Euler　(ALE)　method.　The　damage　to　the　human　chest　under　explosion　shock　waves　was　numerically　calculated,　and　the　effectiveness　of　the　proposed　model　is　verified　by　an　explosion　accident.　Based　on　the　peak　overpressure　criterion　of　shock　waves　and　the　Axelsson　damage　model,　it　was　found　that　personnel　injury　levels　were　only　at　risk　of　minor　injuries　when　TNT　equivalent　was　1　500　g　and　explosion　distance　was　4　m.　Based　on　the　dynamic　response　of　skin,　bones,　heart　and　lungs,　a　detailed　analysis　of　the　types　of　injuries　to　various　tissues　and　organs　of　personnel　was　conducted,　revealing　the　injury　patterns　and　mechanisms　of　explosion　shock　waves　during　minor　injuries.　The　research　results　can　provide　reference　for　the　assessment　of　injuries　caused　by　explosions　and　the　design　of　related　protective　equipment.　©　2024　China　Ordnance　Industry　Corporation.　All　rights　reserved.