$ This is a spotweld config file for defining properties for spotweld elements $ generated using the SWGen interface in LS-PrePost 2.1. The file is not case $ sensitive, and comment lines begin with "$" $ $ MANDATORY KEYWORDS (*SECTION_RANGE, *NRR_NRS_NRT) $ ================== $ *SECTION_RANGE is a table for setting weld diameters. RANGE1 and RANGE2 are $ lower and upper thickness bounds. (see *SECTION_THICKNESS below). Any number $ of thickness ranges can be used. The table must however start with "0.0" and $ end with "ABOVE". *SECTION_RANGE $ RANGE1 RANGE2 DIAMETER 0.0 1.0 2.1 1.0 1.5 2.3 1.5 2.5 2.7 2.5 3.5 3.0 3.5 ABOVE 4.0 $ $ NRR, NRS, and NRT are based on SIGYbasemin = min(SIGY1, SIGY2), where $ SIGY1 and SIGY2 are the yield stresses for the parts being connected. $ As with *SECTION_RANGE, any number of thickness ranges can be used, but the $ table must start with "0.0" and end with "ABOVE". $ If SIGYbasemin = 0.0 (for example when spotwelding material without yield $ stress such as rigid or elastic), then SIGYbasemin will be set to SIGY on $ *MAT_DEFAULTS. $ If SIGYbasemin = 200, the parameters will be set: K=180. N=0.5 A=60 B=180 *NRR_NRS_NRT $ RANGE1 RANGE2 K N A B 0 170. 150. 0.5 60. 150. 170. 240. 180. 0.5 60. 180. 240. 340. 250. 0.5 60. 250. 340. 400. 350. 0.5 60. 350. 400. 450. 410. 0.5 60. 410. 450. 500. 470. 0.5 60. 470. 500. 580. 550. 0.5 60. 550. 580. 700. 600. 0.5 60. 600. 700. 900. 610. 0.5 60. 610. 900. ABOVE 650. 0.5 60. 650. $ $ OPTIONAL KEYWORDS $ ================= $ Method to calculate NRR, NRS, and NRT. (Default: METHOD = 1) $ K, N, A, and B are from *NRR_NRS_NRT. "t" is thickness (see *NXX_THICKNESS). $ METHOD = 1, NRR = K * t^N, NRS = NRT = A*t + B $ METHOD = 2, NRR = K*t + N, NRS = NRT = A*t + B *NXX_METHOD 1 $ $ TH = 1 Min thickness for the two parts connected with the weld element. $ TH = 2 Second largest thickness of ALL layers connected with ONE spweld pt. $ Thickness to use when reading values from *SECTION_RANGE. (Default: TH = 1) *SECTION_THICKNESS $ TH 1 $ $ Thickness to use when calculating NRR, NRS, and NRT. (Default: TH = 1) *NXX_THICKNESS $ TH 1 $ $ Yield Stress for *MAT_SPOTWELD becomes SIGY = min(SIGY1, SIGY2)*FAC, where $ SIGY1 and SIGY2 are the yield stresses for the parts being connected by the $ weld element. (Default: FAC = 0.8) $ If SIGY1 or SIGY2 = 0.0 (for example when spotwelding material without yield $ stress such as rigid or elastic), then SIGY will be set to SIGY on $ *MAT_DEFAULTS. *SIGY_SCALE $ FAC 0.8 $ $*BEAM_SECTION Defaults: SHRF = 1.0, QR/IRID = 2.0, CST = 1.0 *BEAM_SECTION $ SHRF QR/IRID CST 1.0 2.0 1.0 $ $*HEXA_SECTION Default: ETYPE = 1 *HEXA_SECTION $ ETYPE 1 $ $*HEXA_HOURGLASS Default: ETYPE = 6 *HEXA_HOURGLASS $ ETYPE 6 $ $*MATERIAL_DEFAULTS Defaults: $ RO = 7.8e-9, E = 200000.0, PR = 0.3, SIGY = 350.0, ET = 500.0, DT = 0.0 *MAT_DEFAULTS $ RO E PR SIGY ET DT 7.8e-9 200000.0 0.30 350.0 500.0 0.0 $