$ Body loads do not account for added mass (DT2MS<0 and IMSCL=0). $ This is seen from y-accel of the mass-scaled bodies (those with the smaller elements). For $ those bodies, y-accel < acceleration in load_body curve. $ BUT, by invoking selective mass scaling (IMSL=1), the bodies accelerate per the load_body curve. *KEYWORD *CONTROL_TIMESTEP $# dtinit tssfac isdo tslimt dt2ms lctm erode ms1st 0.000 0.800000 0 0.000 -20e-6 $,.8 $$ ,,IMSCL ,,1 *SET_PART 1 1 *SET_PART 2 2 *LOAD_BODY_GENERALIZED_SET_PART $# n1 n2 lcid drlcid xc yc zc 1 100 $# ax ay az omx omy omz 386. *LOAD_BODY_Y 100, 386. *LOAD_BODY_PARTS 2 *DEFINE_CURVE $# lcid sidr sfa sfo offa offo dattyp 100 $# a1 o1 0.0000000 1.0000000 1000.0000000 1.0000000 *TITLE $# title test of body load with mass scaling *CONTROL_TERMINATION $# endtim endcyc dtmin endeng endmas 0.200000 0 0.000 0.000 0.000 *DATABASE_BNDOUT $# dt binary lcur ioopt 0.001000 0 0 0 *DATABASE_GLSTAT $# dt binary lcur ioopt 1.0000E-4 0 0 0 *DATABASE_BINARY_D3PLOT $# dt lcdt beam npltc psetid 0.002000 0 0 0 0 $# ioopt 0 *PART $# title $# pid secid mid eosid hgid grav adpopt tmid 1 1 1 0 0 0 0 0 *SECTION_SOLID $# secid elform aet 1 0 0 *MAT_ELASTIC $# mid ro pr n nv g sigf 1,2e-4,30e6,.3 *PART $# title $# pid secid mid eosid hgid grav adpopt tmid 2 1 1 0 0 0 0 0 *ELEMENT_SOLID $# eid pid n1 n2 n3 n4 n5 n6 n7 n8 6 2 33 34 35 36 38 39 41 37 10 1 65 66 67 68 70 71 73 69 14 1 72 97 109 100 105 111 115 114 15 1 74 98 109 97 106 112 115 111 16 1 75 99 109 98 107 113 115 112 17 1 76 100 109 99 108 114 115 113 18 1 78 101 111 105 104 110 115 114 19 1 79 102 112 106 101 110 115 111 20 1 80 103 113 107 102 110 115 112 21 1 77 104 114 108 103 110 115 113 22 2 40 116 128 119 124 130 134 133 23 2 42 117 128 116 125 131 134 130 24 2 43 118 128 117 126 132 134 131 25 2 44 119 128 118 127 133 134 132 26 2 46 120 130 124 123 129 134 133 27 2 47 121 131 125 120 129 134 130 28 2 48 122 132 126 121 129 134 131 29 2 45 123 133 127 122 129 134 132 *NODE $# nid x y z tc rc 1 0.000 0.000 0.000 0 0 33 0.000 0.000 30.0000000 0 0 34 10.0000000 0.000 30.0000000 0 0 35 10.0000000 10.0000000 30.0000000 0 0 36 0.000 10.0000000 30.0000000 0 0 37 0.000 10.0000000 40.0000000 0 0 38 0.000 0.000 40.0000000 0 0 39 10.0000000 0.000 40.0000000 0 0 40 30.0000000 0.000 30.0000000 0 0 41 10.0000000 10.0000000 40.0000000 0 0 42 40.0000000 0.000 30.0000000 0 0 43 40.0000000 10.0000000 30.0000000 0 0 44 30.0000000 10.0000000 30.0000000 0 0 45 30.0000000 10.0000000 40.0000000 0 0 46 30.0000000 0.000 40.0000000 0 0 47 40.0000000 0.000 40.0000000 0 0 48 40.0000000 10.0000000 40.0000000 0 0 65 0.000 0.000 60.0000000 0 0 66 10.0000000 0.000 60.0000000 0 0 67 10.0000000 10.0000000 60.0000000 0 0 68 0.000 10.0000000 60.0000000 0 0 69 0.000 10.0000000 70.0000000 0 0 70 0.000 0.000 70.0000000 0 0 71 10.0000000 0.000 70.0000000 0 0 72 30.0000000 0.000 60.0000000 0 0 73 10.0000000 10.0000000 70.0000000 0 0 74 40.0000000 0.000 60.0000000 0 0 75 40.0000000 10.0000000 60.0000000 0 0 76 30.0000000 10.0000000 60.0000000 0 0 77 30.0000000 10.0000000 70.0000000 0 0 78 30.0000000 0.000 70.0000000 0 0 79 40.0000000 0.000 70.0000000 0 0 80 40.0000000 10.0000000 70.0000000 0 0 96 100.0000000 10.0000000 70.0000000 0 0 97 35.0000000 0.000 60.0000000 0 0 98 40.0000000 5.0000000 60.0000000 0 0 99 35.0000000 10.0000000 60.0000000 0 0 100 30.0000000 5.0000000 60.0000000 0 0 101 35.0000000 0.000 70.0000000 0 0 102 40.0000000 5.0000000 70.0000000 0 0 103 35.0000000 10.0000000 70.0000000 0 0 104 30.0000000 5.0000000 70.0000000 0 0 105 30.0000000 0.000 65.0000000 0 0 106 40.0000000 0.000 65.0000000 0 0 107 40.0000000 10.0000000 65.0000000 0 0 108 30.0000000 10.0000000 65.0000000 0 0 109 35.0000000 5.0000000 60.0000000 0 0 110 35.0000000 5.0000000 70.0000000 0 0 111 35.0000000 0.000 65.0000000 0 0 112 40.0000000 5.0000000 65.0000000 0 0 113 35.0000000 10.0000000 65.0000000 0 0 114 30.0000000 5.0000000 65.0000000 0 0 115 35.0000000 5.0000000 65.0000000 0 0 116 35.0000000 0.000 30.0000000 0 0 117 40.0000000 5.0000000 30.0000000 0 0 118 35.0000000 10.0000000 30.0000000 0 0 119 30.0000000 5.0000000 30.0000000 0 0 120 35.0000000 0.000 40.0000000 0 0 121 40.0000000 5.0000000 40.0000000 0 0 122 35.0000000 10.0000000 40.0000000 0 0 123 30.0000000 5.0000000 40.0000000 0 0 124 30.0000000 0.000 35.0000000 0 0 125 40.0000000 0.000 35.0000000 0 0 126 40.0000000 10.0000000 35.0000000 0 0 127 30.0000000 10.0000000 35.0000000 0 0 128 35.0000000 5.0000000 30.0000000 0 0 129 35.0000000 5.0000000 40.0000000 0 0 130 35.0000000 0.000 35.0000000 0 0 131 40.0000000 5.0000000 35.0000000 0 0 132 35.0000000 10.0000000 35.0000000 0 0 133 30.0000000 5.0000000 35.0000000 0 0 134 35.0000000 5.0000000 35.0000000 0 0 *END